<template>
	<view class="content">
		<view class="navbar">
			<view v-for="(item, index) in navList" :key="index" class="nav-item" :class="{current: tabCurrentIndex === index}"
			 @click="tabClick(index)">
				{{item.text}}
			</view>
		</view>

		<swiper :current="tabCurrentIndex" class="swiper-box" duration="300" @change="changeTab">
			<swiper-item class="tab-content" v-for="(tabItem,tabIndex) in navList" :key="tabIndex">
				<scroll-view class="list-scroll-content" scroll-y @scrolltolower="initData">
					<!-- 空白页 -->
					<empty v-if="tabItem.loaded === true && tabItem.orderList.length === 0"></empty>

					<!-- 订单列表 -->
					<view v-for="(item,index) in tabItem.orderList" :key="index" class="order-item"  v-if="tabItem.state==0||tabItem.state==1">
						<view class="i-top b-b">
							<text class="time">{{item.time}}</text>
						</view>
						<view  class="goods-box-single"
						 >
							<image class="goods-img" :src="item.image" mode="aspectFill"></image>
							<view class="right">
								<text class="title clamp">{{item.title}}</text>
								<!-- <rich-text class="attr-box" :nodes="item.attr"></rich-text> -->
								<text class="price">{{item.price}}</text>
							</view>
						</view>

						<view class="price-box">
							实付款
							<text class="price">{{item.price}}</text>
						</view>

					</view>
					<view v-for="(item,index) in tabItem.orderList" :key="index" class="pg-item"  v-if="tabItem.state==2">
							<view class="pg-content">
								<view class="pg-view">
									<text class="pg-title">试题:{{item.questionstitle}}</text>
								</view>
								<view class="pg-view">
									<text class="pg-title">答题时间:{{item.answertime}}</text>
								</view>
								<!-- <view class="pg-view">
									<text class="pg-title">分数:{{item.source}}</text>
								</view> -->
								<view class="pg-view">
								<text v-if="item.correctflag=='2'" class="attr_tag attr_tag-danger">已批改</text>
								</view>
								<view class="bot b-t" @click="pgClick(item)">
									<text>查看详情</text>
									<text class="more-icon yticon icon-you"></text>
								</view>
							</view>
					
					</view>

					<uni-load-more :status="tabItem.loadingType"></uni-load-more>

				</scroll-view>
			</swiper-item>
		</swiper>
	</view>
</template>

<script>
	import uniLoadMore from '@/components/uni-load-more/uni-load-more.vue';
	import empty from "@/components/empty";
	import Json from '@/Json';
	import userApi from '@/api/user.js'

	let _this;
	export default {
		components: {
			uniLoadMore,
			empty
		},
		data() {
			return {
				tabCurrentIndex: 0,
				navList: [{
						state: 0,
						text: '课程套餐',
						loadingType: 'more',
						page: 1,
						pagenum: 8,
						orderList: [],
						count:0,
						dataResult:{}
					},
					{
						state: 1,
						text: '精品课程',
						loadingType: 'more',
						page: 1,
						pagenum: 8,
						orderList: [],
						count:0,
						dataResult:{}
					},
					{
						state: 2,
						text: '教师批改',
						loadingType: 'more',
						page: 1,
						pagenum: 8,
						orderList: [],
						count:0,
						dataResult:{}
					},
					{
						state: 3,
						text: '名师课程',
						loadingType: 'more',
						page: 1,
						pagenum: 8,
						orderList: [],
						count:0,
						dataResult:{}
					},
					{
						state: 4,
						text: '名师教材',
						loadingType: 'more',
						page: 1,
						pagenum: 8,
						orderList: [],
						count:0,
						dataResult:{}
					}
				],
			};
		},

		onLoad(options) {
			_this = this;
			/**
			 * 修复app端点击除全部订单外的按钮进入时不加载数据的问题
			 * 替换onLoad下代码即可
			 */
			_this.tabCurrentIndex = +options.state;
			console.log(_this.tabCurrentIndex)
			// _this.loadData()
			_this.initData()
		},

		methods: {
			pgClick(item) {
				let id = item.id
				uni.navigateTo({
					url: '/pages/user/order/orderPgDetail?id=' + id
				})
			},
			async initData(source) {
				//userApi
				//这里是将订单挂载到tab列表下
				let index = _this.tabCurrentIndex;
				let navItem = _this.navList[index];
				let state = navItem.state;

				let {
					usercode
				} = uni.getStorageSync('user')
				
				if (source === 'tabChange' && navItem.loaded === true) {
					//tab切换只有第一次需要加载数据
					return;
				}
				if (navItem.loadingType === 'loading') {
					//防止重复加载
					return;
				}
				if (navItem.loadingType === 'noMore') {
					//防加载
					return;
				}
				
				navItem.loadingType = 'loading';
				let orderList = []
				let dataResult= {};
				if (state == 0) {
					//学习包
					dataResult = await userApi.my_xxb_list({
						"usercode": usercode,
						"pagenum": navItem.pagenum,
						"page": navItem.page
					}).then(res => {
						console.log(res)
						return res.data
					}).catch(err => {
						console.log(err)
						return {}
					})
					dataResult.list = dataResult.list==null?[]:dataResult.list
					dataResult.list.forEach((item,index)=>{
						orderList.push({
							"id" : item.buyid,
							"time" : item.RecordDate,
							"image" : item.picture,
							"title" : item.packagename,
							"number" : "1",
							"attr" : item.packagename,
							"price" : item.packageprice
						})
						
					})
				} else if (state == 1) {
					
					dataResult = await userApi.my_kc_list({
						"usercode": usercode,
						"pagenum": navItem.pagenum,
						"page": navItem.page
					}).then(res => {
						console.log(res)
						return res.data
					}).catch(err => {
						console.log(err)
						return {}
					})
					dataResult.list = dataResult.list==null?[]:dataResult.list
					dataResult.list.forEach((item,index)=>{
						orderList.push({
							"id" : item.buyid,
							"time" : item.RecordDate,
							"image" : item.picture,
							"title" : item.curriculumname,
							"number" : "1",
							"attr" : item.curriculumjj,
							"price" : item.specialprice
						})
						
					})
				} else if (state == 2) {
					
					dataResult = await userApi.my_pg_list({
						"usercode": usercode,
						"pagenum": navItem.pagenum,
						"page": navItem.page
					}).then(res => {
						console.log(res)
						return res.data
					}).catch(err => {
						console.log(err)
						return {}
					})
					
					dataResult.list = dataResult.list==null?[]:dataResult.list
					dataResult.list.forEach((item,index)=>{
						orderList.push(item)
						
					})
				} else if (state == 3) {
					orderList=[]
				
				} else if (state == 4) {
					orderList=[]
				}
				
				console.log(dataResult)
				navItem.count = dataResult.count
				navItem.dataResult = dataResult
				
				
				
				navItem.orderList = navItem.orderList.concat(orderList)
				//loaded新字段用于表示数据加载完毕，如果为空可以显示空白页
				this.$set(navItem, 'loaded', true);
				
				if(navItem.orderList.length<dataResult.count){
					//有数据
					//判断是否还有数据， 有改为 more， 没有改为noMore 
					navItem.page = navItem.page+1
					navItem.loadingType = 'more';
				}else{
					navItem.loadingType = 'noMore';
				}
				
				
				
				// setTimeout(() => {
				// }, 600);


			},
			//获取订单列表
			loadData(source) {
				
				//这里是将订单挂载到tab列表下
				let index = this.tabCurrentIndex;
				let navItem = this.navList[index];
				let state = navItem.state;

				if (source === 'tabChange' && navItem.loaded === true) {
					//tab切换只有第一次需要加载数据
					return;
				}
				if (navItem.loadingType === 'loading') {
					//防止重复加载
					return;
				}

				navItem.loadingType = 'loading';

				setTimeout(() => {
					let orderList = Json.orderList.filter(item => {
						//添加不同状态下订单的表现形式
						item = Object.assign(item, this.orderStateExp(item.state));
						//演示数据所以自己进行状态筛选
						if (state === 0) {
							//0为全部订单
							return item;
						}
						return item.state === state
					});
					orderList.forEach(item => {
						navItem.orderList.push(item);
					})
					//loaded新字段用于表示数据加载完毕，如果为空可以显示空白页
					this.$set(navItem, 'loaded', true);

					//判断是否还有数据， 有改为 more， 没有改为noMore 
					navItem.loadingType = 'more';
				}, 600);
			},

			//swiper 切换
			changeTab(e) {
				this.tabCurrentIndex = e.target.current;
				this.initData('tabChange');
			},
			//顶部tab点击
			tabClick(index) {
				this.tabCurrentIndex = index;
			},


			//订单状态文字和颜色
			orderStateExp(state) {
				let stateTip = '',
					stateTipColor = '#fa436a';
				switch (+state) {
					case 1:
						stateTip = '待付款';
						break;
					case 2:
						stateTip = '待发货';
						break;
					case 9:
						stateTip = '订单已关闭';
						stateTipColor = '#909399';
						break;

						//更多自定义
				}
				return {
					stateTip,
					stateTipColor
				};
			}
		},
	}
</script>

<style lang="scss">
	page,
	.content {
		background: $page-color-base;
		height: 100%;
	}

	.swiper-box {
		height: calc(100% - 40px);
	}

	.list-scroll-content {
		height: 100%;
	}

	.navbar {
		display: flex;
		height: 40px;
		padding: 0 5px;
		background: #fff;
		box-shadow: 0 1px 5px rgba(0, 0, 0, .06);
		position: relative;
		z-index: 10;

		.nav-item {
			flex: 1;
			display: flex;
			justify-content: center;
			align-items: center;
			height: 100%;
			font-size: 15px;
			color: $font-color-dark;
			position: relative;

			&.current {
				color: $base-color;

				&:after {
					content: '';
					position: absolute;
					left: 50%;
					bottom: 0;
					transform: translateX(-50%);
					width: 44px;
					height: 0;
					border-bottom: 2px solid $base-color;
				}
			}
		}
	}

	.uni-swiper-item {
		height: auto;
	}

	.order-item {
		display: flex;
		flex-direction: column;
		padding-left: 30upx;
		background: #fff;
		margin-top: 16upx;

		.i-top {
			display: flex;
			align-items: center;
			height: 80upx;
			padding-right: 30upx;
			font-size: $font-base;
			color: $font-color-dark;
			position: relative;

			.time {
				flex: 1;
			}

			.state {
				color: $base-color;
			}

			.del-btn {
				padding: 10upx 0 10upx 36upx;
				font-size: $font-lg;
				color: $font-color-light;
				position: relative;

				&:after {
					content: '';
					width: 0;
					height: 30upx;
					border-left: 1px solid $border-color-dark;
					position: absolute;
					left: 20upx;
					top: 50%;
					transform: translateY(-50%);
				}
			}
		}

		/* 多条商品 */
		.goods-box {
			height: 160upx;
			padding: 20upx 0;
			white-space: nowrap;

			.goods-item {
				width: 120upx;
				height: 120upx;
				display: inline-block;
				margin-right: 24upx;
			}

			.goods-img {
				display: block;
				width: 100%;
				height: 100%;
			}
		}

		/* 单条商品 */
		.goods-box-single {
			display: flex;
			padding: 20upx 0;

			.goods-img {
				display: block;
				width: 120upx;
				height: 120upx;
			}

			.right {
				flex: 1;
				display: flex;
				flex-direction: column;
				padding: 0 30upx 0 24upx;
				overflow: hidden;

				.title {
					font-size: $font-base + 2upx;
					color: $font-color-dark;
					// line-height: 1;
				}

				.attr-box {
					font-size: $font-sm + 2upx;
					color: $font-color-light;
					padding: 10upx 12upx;
				}

				.price {
					font-size: $font-base + 2upx;
					color: $font-color-dark;

					&:before {
						content: '￥';
						font-size: $font-sm;
						margin: 0 2upx 0 8upx;
					}
				}
			}
		}

		.price-box {
			display: flex;
			justify-content: flex-end;
			align-items: baseline;
			padding: 20upx 30upx;
			font-size: $font-sm + 2upx;
			color: $font-color-light;

			.num {
				margin: 0 8upx;
				color: $font-color-dark;
			}

			.price {
				font-size: $font-lg;
				color: $font-color-dark;

				&:before {
					content: '￥';
					font-size: $font-sm;
					margin: 0 2upx 0 8upx;
				}
			}
		}

		.action-box {
			display: flex;
			justify-content: flex-end;
			align-items: center;
			height: 100upx;
			position: relative;
			padding-right: 30upx;
		}

		.action-btn {
			width: 160upx;
			height: 60upx;
			margin: 0;
			margin-left: 24upx;
			padding: 0;
			text-align: center;
			line-height: 60upx;
			font-size: $font-sm + 2upx;
			color: $font-color-dark;
			background: #fff;
			border-radius: 100px;

			&:after {
				border-radius: 100px;
			}

			&.recom {
				background: #fff9f9;
				color: $base-color;

				&:after {
					border-color: #f7bcc8;
				}
			}
		}
	}


	/* load-more */
	.uni-load-more {
		display: flex;
		flex-direction: row;
		height: 80upx;
		align-items: center;
		justify-content: center
	}

	.uni-load-more__text {
		font-size: 28upx;
		color: #999
	}

	.uni-load-more__img {
		height: 24px;
		width: 24px;
		margin-right: 10px
	}

	.uni-load-more__img>view {
		position: absolute
	}

	.uni-load-more__img>view view {
		width: 6px;
		height: 2px;
		border-top-left-radius: 1px;
		border-bottom-left-radius: 1px;
		background: #999;
		position: absolute;
		opacity: .2;
		transform-origin: 50%;
		animation: load 1.56s ease infinite
	}

	.uni-load-more__img>view view:nth-child(1) {
		transform: rotate(90deg);
		top: 2px;
		left: 9px
	}

	.uni-load-more__img>view view:nth-child(2) {
		transform: rotate(180deg);
		top: 11px;
		right: 0
	}

	.uni-load-more__img>view view:nth-child(3) {
		transform: rotate(270deg);
		bottom: 2px;
		left: 9px
	}

	.uni-load-more__img>view view:nth-child(4) {
		top: 11px;
		left: 0
	}

	.load1,
	.load2,
	.load3 {
		height: 24px;
		width: 24px
	}

	.load2 {
		transform: rotate(30deg)
	}

	.load3 {
		transform: rotate(60deg)
	}

	.load1 view:nth-child(1) {
		animation-delay: 0s
	}

	.load2 view:nth-child(1) {
		animation-delay: .13s
	}

	.load3 view:nth-child(1) {
		animation-delay: .26s
	}

	.load1 view:nth-child(2) {
		animation-delay: .39s
	}

	.load2 view:nth-child(2) {
		animation-delay: .52s
	}

	.load3 view:nth-child(2) {
		animation-delay: .65s
	}

	.load1 view:nth-child(3) {
		animation-delay: .78s
	}

	.load2 view:nth-child(3) {
		animation-delay: .91s
	}

	.load3 view:nth-child(3) {
		animation-delay: 1.04s
	}

	.load1 view:nth-child(4) {
		animation-delay: 1.17s
	}

	.load2 view:nth-child(4) {
		animation-delay: 1.3s
	}

	.load3 view:nth-child(4) {
		animation-delay: 1.43s
	}

	@-webkit-keyframes load {
		0% {
			opacity: 1
		}

		100% {
			opacity: .2
		}
	}
	
	.pg-item {
		display: flex;
		flex-direction: column;
		align-items: center;
		width: 100%;
		.time {
			display: flex;
			align-items: center;
			justify-content: center;
			height: 80upx;
			padding-top: 10upx;
			font-size: 26upx;
			color: #7d7d7d;
		}
		
		.pg-content{
			width: 100%;
			padding: 0 30upx  0 30upx;
			background-color: #fff;
			border-radius: 4upx;
			margin-top:16upx;
		}
		.pg-view{
			padding:10upx 0 ;
			.pg-title {
				display: flex;
				align-items: center;
				// height: 50upx;
				font-size: 30upx;
				color: #303133;
				
			}
		}
		
		
		.bot {
			display: flex;
			align-items: center;
			justify-content: space-between;
			height: 80upx;
			font-size: 24upx;
			color: #707070;
			position: relative;
		}
		
		.more-icon {
			font-size: 32upx;
		}
	}
	.attr_tag{
		font-size: $font-sm + 2upx;
		line-height: 50upx;
		color: #fff;
		
		border-radius: 0 30upx 30upx 0 ;
		margin: 0 0upx;
		padding: 0 10upx;
	}
	.attr_tag-danger{
		background-color: #fb4b6c;
	}
	.attr_tag-primary{
		background-color:  #007aff;
	}
	
</style>
